Linear array and ring embeddings in conditional faulty hypercubes

  • Authors:
  • Chang-Hsiung Tsai

  • Affiliations:
  • Department of Computer Science and Information Engineering, Dahan Institute of Technology, No. 1, Sujen Street, Hualien, Sincheng, Dahan 971, Taiwan, ROC

  • Venue:
  • Theoretical Computer Science
  • Year:
  • 2004

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Abstract

The n-dimensional hypercube Qn is a graph having 2n vertices labeled from 0 to 2n - 1. Two vertices are connected by an edge if their binary labels differ in exactly one bit position. In this paper, we consider the faulty hypercube Qn with n ≥ 3 that each vertex of Qn is incident to at least two nonfaulty edges. Based on this requirement, we prove that Qn contains a Hamiltonian path joining any two different colored vertices even if it has up to 2n - 5 edge faults, Moreover, we show that there exists a path of length 2n - 2 between any two the same colored vertices in this faulty Qn. Furthermore, we also prove that the faulty Qn still contains a cycle of every even length from 4 to 2n inclusive.